2 * Copyright © 2014 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
24 * Connor Abbott (cwabbott0@gmail.com)
28 #include "glsl_to_nir.h"
29 #include "ir_visitor.h"
30 #include "ir_hierarchical_visitor.h"
32 #include "compiler/nir/nir_control_flow.h"
33 #include "compiler/nir/nir_builder.h"
34 #include "main/imports.h"
35 #include "main/mtypes.h"
36 #include "util/u_math.h"
39 * pass to lower GLSL IR to NIR
41 * This will lower variable dereferences to loads/stores of corresponding
42 * variables in NIR - the variables will be converted to registers in a later
48 class nir_visitor
: public ir_visitor
51 nir_visitor(nir_shader
*shader
);
54 virtual void visit(ir_variable
*);
55 virtual void visit(ir_function
*);
56 virtual void visit(ir_function_signature
*);
57 virtual void visit(ir_loop
*);
58 virtual void visit(ir_if
*);
59 virtual void visit(ir_discard
*);
60 virtual void visit(ir_loop_jump
*);
61 virtual void visit(ir_return
*);
62 virtual void visit(ir_call
*);
63 virtual void visit(ir_assignment
*);
64 virtual void visit(ir_emit_vertex
*);
65 virtual void visit(ir_end_primitive
*);
66 virtual void visit(ir_expression
*);
67 virtual void visit(ir_swizzle
*);
68 virtual void visit(ir_texture
*);
69 virtual void visit(ir_constant
*);
70 virtual void visit(ir_dereference_variable
*);
71 virtual void visit(ir_dereference_record
*);
72 virtual void visit(ir_dereference_array
*);
73 virtual void visit(ir_barrier
*);
75 void create_function(ir_function_signature
*ir
);
78 void add_instr(nir_instr
*instr
, unsigned num_components
, unsigned bit_size
);
79 nir_ssa_def
*evaluate_rvalue(ir_rvalue
*ir
);
81 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
**srcs
);
82 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
);
83 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
85 nir_alu_instr
*emit(nir_op op
, unsigned dest_size
, nir_ssa_def
*src1
,
86 nir_ssa_def
*src2
, nir_ssa_def
*src3
);
91 nir_function_impl
*impl
;
93 nir_ssa_def
*result
; /* result of the expression tree last visited */
95 nir_deref_instr
*evaluate_deref(ir_instruction
*ir
);
97 /* most recent deref instruction created */
98 nir_deref_instr
*deref
;
100 /* whether the IR we're operating on is per-function or global */
103 /* map of ir_variable -> nir_variable */
104 struct hash_table
*var_table
;
106 /* map of ir_function_signature -> nir_function_overload */
107 struct hash_table
*overload_table
;
111 * This visitor runs before the main visitor, calling create_function() for
112 * each function so that the main visitor can resolve forward references in
116 class nir_function_visitor
: public ir_hierarchical_visitor
119 nir_function_visitor(nir_visitor
*v
) : visitor(v
)
122 virtual ir_visitor_status
visit_enter(ir_function
*);
125 nir_visitor
*visitor
;
128 } /* end of anonymous namespace */
131 glsl_to_nir(const struct gl_shader_program
*shader_prog
,
132 gl_shader_stage stage
,
133 const nir_shader_compiler_options
*options
)
135 struct gl_linked_shader
*sh
= shader_prog
->_LinkedShaders
[stage
];
137 nir_shader
*shader
= nir_shader_create(NULL
, stage
, options
,
140 nir_visitor
v1(shader
);
141 nir_function_visitor
v2(&v1
);
143 visit_exec_list(sh
->ir
, &v1
);
145 nir_lower_constant_initializers(shader
, (nir_variable_mode
)~0);
147 /* Remap the locations to slots so those requiring two slots will occupy
148 * two locations. For instance, if we have in the IR code a dvec3 attr0 in
149 * location 0 and vec4 attr1 in location 1, in NIR attr0 will use
150 * locations/slots 0 and 1, and attr1 will use location/slot 2 */
151 if (shader
->info
.stage
== MESA_SHADER_VERTEX
)
152 nir_remap_dual_slot_attributes(shader
, &sh
->Program
->DualSlotInputs
);
154 shader
->info
.name
= ralloc_asprintf(shader
, "GLSL%d", shader_prog
->Name
);
155 if (shader_prog
->Label
)
156 shader
->info
.label
= ralloc_strdup(shader
, shader_prog
->Label
);
158 /* Check for transform feedback varyings specified via the API */
159 shader
->info
.has_transform_feedback_varyings
=
160 shader_prog
->TransformFeedback
.NumVarying
> 0;
162 /* Check for transform feedback varyings specified in the Shader */
163 if (shader_prog
->last_vert_prog
)
164 shader
->info
.has_transform_feedback_varyings
|=
165 shader_prog
->last_vert_prog
->sh
.LinkedTransformFeedback
->NumVarying
> 0;
170 nir_visitor::nir_visitor(nir_shader
*shader
)
172 this->supports_ints
= shader
->options
->native_integers
;
173 this->shader
= shader
;
174 this->is_global
= true;
175 this->var_table
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
176 _mesa_key_pointer_equal
);
177 this->overload_table
= _mesa_hash_table_create(NULL
, _mesa_hash_pointer
,
178 _mesa_key_pointer_equal
);
181 memset(&this->b
, 0, sizeof(this->b
));
184 nir_visitor::~nir_visitor()
186 _mesa_hash_table_destroy(this->var_table
, NULL
);
187 _mesa_hash_table_destroy(this->overload_table
, NULL
);
191 nir_visitor::evaluate_deref(ir_instruction
*ir
)
197 static nir_constant
*
198 constant_copy(ir_constant
*ir
, void *mem_ctx
)
203 nir_constant
*ret
= rzalloc(mem_ctx
, nir_constant
);
205 const unsigned rows
= ir
->type
->vector_elements
;
206 const unsigned cols
= ir
->type
->matrix_columns
;
209 ret
->num_elements
= 0;
210 switch (ir
->type
->base_type
) {
212 /* Only float base types can be matrices. */
215 for (unsigned r
= 0; r
< rows
; r
++)
216 ret
->values
[0].u32
[r
] = ir
->value
.u
[r
];
221 /* Only float base types can be matrices. */
224 for (unsigned r
= 0; r
< rows
; r
++)
225 ret
->values
[0].i32
[r
] = ir
->value
.i
[r
];
229 case GLSL_TYPE_FLOAT
:
230 for (unsigned c
= 0; c
< cols
; c
++) {
231 for (unsigned r
= 0; r
< rows
; r
++)
232 ret
->values
[c
].f32
[r
] = ir
->value
.f
[c
* rows
+ r
];
236 case GLSL_TYPE_DOUBLE
:
237 for (unsigned c
= 0; c
< cols
; c
++) {
238 for (unsigned r
= 0; r
< rows
; r
++)
239 ret
->values
[c
].f64
[r
] = ir
->value
.d
[c
* rows
+ r
];
243 case GLSL_TYPE_UINT64
:
244 /* Only float base types can be matrices. */
247 for (unsigned r
= 0; r
< rows
; r
++)
248 ret
->values
[0].u64
[r
] = ir
->value
.u64
[r
];
251 case GLSL_TYPE_INT64
:
252 /* Only float base types can be matrices. */
255 for (unsigned r
= 0; r
< rows
; r
++)
256 ret
->values
[0].i64
[r
] = ir
->value
.i64
[r
];
260 /* Only float base types can be matrices. */
263 for (unsigned r
= 0; r
< rows
; r
++)
264 ret
->values
[0].u32
[r
] = ir
->value
.b
[r
] ? NIR_TRUE
: NIR_FALSE
;
268 case GLSL_TYPE_STRUCT
:
269 case GLSL_TYPE_ARRAY
:
270 ret
->elements
= ralloc_array(mem_ctx
, nir_constant
*,
272 ret
->num_elements
= ir
->type
->length
;
274 for (i
= 0; i
< ir
->type
->length
; i
++)
275 ret
->elements
[i
] = constant_copy(ir
->const_elements
[i
], mem_ctx
);
279 unreachable("not reached");
286 nir_visitor::visit(ir_variable
*ir
)
288 /* TODO: In future we should switch to using the NIR lowering pass but for
289 * now just ignore these variables as GLSL IR should have lowered them.
290 * Anything remaining are just dead vars that weren't cleaned up.
292 if (ir
->data
.mode
== ir_var_shader_shared
)
295 nir_variable
*var
= rzalloc(shader
, nir_variable
);
296 var
->type
= ir
->type
;
297 var
->name
= ralloc_strdup(var
, ir
->name
);
299 var
->data
.always_active_io
= ir
->data
.always_active_io
;
300 var
->data
.read_only
= ir
->data
.read_only
;
301 var
->data
.centroid
= ir
->data
.centroid
;
302 var
->data
.sample
= ir
->data
.sample
;
303 var
->data
.patch
= ir
->data
.patch
;
304 var
->data
.invariant
= ir
->data
.invariant
;
305 var
->data
.location
= ir
->data
.location
;
306 var
->data
.stream
= ir
->data
.stream
;
307 var
->data
.compact
= false;
309 switch(ir
->data
.mode
) {
311 case ir_var_temporary
:
313 var
->data
.mode
= nir_var_global
;
315 var
->data
.mode
= nir_var_local
;
318 case ir_var_function_in
:
319 case ir_var_function_out
:
320 case ir_var_function_inout
:
321 case ir_var_const_in
:
322 var
->data
.mode
= nir_var_local
;
325 case ir_var_shader_in
:
326 if (shader
->info
.stage
== MESA_SHADER_FRAGMENT
&&
327 ir
->data
.location
== VARYING_SLOT_FACE
) {
328 /* For whatever reason, GLSL IR makes gl_FrontFacing an input */
329 var
->data
.location
= SYSTEM_VALUE_FRONT_FACE
;
330 var
->data
.mode
= nir_var_system_value
;
331 } else if (shader
->info
.stage
== MESA_SHADER_GEOMETRY
&&
332 ir
->data
.location
== VARYING_SLOT_PRIMITIVE_ID
) {
333 /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
334 var
->data
.location
= SYSTEM_VALUE_PRIMITIVE_ID
;
335 var
->data
.mode
= nir_var_system_value
;
337 var
->data
.mode
= nir_var_shader_in
;
339 if (shader
->info
.stage
== MESA_SHADER_TESS_EVAL
&&
340 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
341 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
342 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
347 case ir_var_shader_out
:
348 var
->data
.mode
= nir_var_shader_out
;
349 if (shader
->info
.stage
== MESA_SHADER_TESS_CTRL
&&
350 (ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_INNER
||
351 ir
->data
.location
== VARYING_SLOT_TESS_LEVEL_OUTER
)) {
352 var
->data
.compact
= ir
->type
->without_array()->is_scalar();
357 var
->data
.mode
= nir_var_uniform
;
360 case ir_var_shader_storage
:
361 var
->data
.mode
= nir_var_shader_storage
;
364 case ir_var_system_value
:
365 var
->data
.mode
= nir_var_system_value
;
369 unreachable("not reached");
372 var
->data
.interpolation
= ir
->data
.interpolation
;
373 var
->data
.origin_upper_left
= ir
->data
.origin_upper_left
;
374 var
->data
.pixel_center_integer
= ir
->data
.pixel_center_integer
;
375 var
->data
.location_frac
= ir
->data
.location_frac
;
377 if (var
->data
.pixel_center_integer
) {
378 assert(shader
->info
.stage
== MESA_SHADER_FRAGMENT
);
379 shader
->info
.fs
.pixel_center_integer
= true;
382 switch (ir
->data
.depth_layout
) {
383 case ir_depth_layout_none
:
384 var
->data
.depth_layout
= nir_depth_layout_none
;
386 case ir_depth_layout_any
:
387 var
->data
.depth_layout
= nir_depth_layout_any
;
389 case ir_depth_layout_greater
:
390 var
->data
.depth_layout
= nir_depth_layout_greater
;
392 case ir_depth_layout_less
:
393 var
->data
.depth_layout
= nir_depth_layout_less
;
395 case ir_depth_layout_unchanged
:
396 var
->data
.depth_layout
= nir_depth_layout_unchanged
;
399 unreachable("not reached");
402 var
->data
.index
= ir
->data
.index
;
403 var
->data
.descriptor_set
= 0;
404 var
->data
.binding
= ir
->data
.binding
;
405 var
->data
.explicit_binding
= ir
->data
.explicit_binding
;
406 var
->data
.bindless
= ir
->data
.bindless
;
407 var
->data
.offset
= ir
->data
.offset
;
409 unsigned image_access
= 0;
410 if (ir
->data
.memory_read_only
)
411 image_access
|= ACCESS_NON_WRITEABLE
;
412 if (ir
->data
.memory_write_only
)
413 image_access
|= ACCESS_NON_READABLE
;
414 if (ir
->data
.memory_coherent
)
415 image_access
|= ACCESS_COHERENT
;
416 if (ir
->data
.memory_volatile
)
417 image_access
|= ACCESS_VOLATILE
;
418 if (ir
->data
.memory_restrict
)
419 image_access
|= ACCESS_RESTRICT
;
420 var
->data
.image
.access
= (gl_access_qualifier
)image_access
;
421 var
->data
.image
.format
= ir
->data
.image_format
;
423 var
->data
.fb_fetch_output
= ir
->data
.fb_fetch_output
;
424 var
->data
.explicit_xfb_buffer
= ir
->data
.explicit_xfb_buffer
;
425 var
->data
.explicit_xfb_stride
= ir
->data
.explicit_xfb_stride
;
426 var
->data
.xfb_buffer
= ir
->data
.xfb_buffer
;
427 var
->data
.xfb_stride
= ir
->data
.xfb_stride
;
429 var
->num_state_slots
= ir
->get_num_state_slots();
430 if (var
->num_state_slots
> 0) {
431 var
->state_slots
= rzalloc_array(var
, nir_state_slot
,
432 var
->num_state_slots
);
434 ir_state_slot
*state_slots
= ir
->get_state_slots();
435 for (unsigned i
= 0; i
< var
->num_state_slots
; i
++) {
436 for (unsigned j
= 0; j
< 5; j
++)
437 var
->state_slots
[i
].tokens
[j
] = state_slots
[i
].tokens
[j
];
438 var
->state_slots
[i
].swizzle
= state_slots
[i
].swizzle
;
441 var
->state_slots
= NULL
;
444 var
->constant_initializer
= constant_copy(ir
->constant_initializer
, var
);
446 var
->interface_type
= ir
->get_interface_type();
448 if (var
->data
.mode
== nir_var_local
)
449 nir_function_impl_add_variable(impl
, var
);
451 nir_shader_add_variable(shader
, var
);
453 _mesa_hash_table_insert(var_table
, ir
, var
);
457 nir_function_visitor::visit_enter(ir_function
*ir
)
459 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
) {
460 visitor
->create_function(sig
);
462 return visit_continue_with_parent
;
466 nir_visitor::create_function(ir_function_signature
*ir
)
468 if (ir
->is_intrinsic())
471 nir_function
*func
= nir_function_create(shader
, ir
->function_name());
473 assert(ir
->parameters
.is_empty());
474 assert(ir
->return_type
== glsl_type::void_type
);
476 _mesa_hash_table_insert(this->overload_table
, ir
, func
);
480 nir_visitor::visit(ir_function
*ir
)
482 foreach_in_list(ir_function_signature
, sig
, &ir
->signatures
)
487 nir_visitor::visit(ir_function_signature
*ir
)
489 if (ir
->is_intrinsic())
492 struct hash_entry
*entry
=
493 _mesa_hash_table_search(this->overload_table
, ir
);
496 nir_function
*func
= (nir_function
*) entry
->data
;
498 if (ir
->is_defined
) {
499 nir_function_impl
*impl
= nir_function_impl_create(func
);
502 assert(strcmp(func
->name
, "main") == 0);
503 assert(ir
->parameters
.is_empty());
505 this->is_global
= false;
507 nir_builder_init(&b
, impl
);
508 b
.cursor
= nir_after_cf_list(&impl
->body
);
509 visit_exec_list(&ir
->body
, this);
511 this->is_global
= true;
518 nir_visitor::visit(ir_loop
*ir
)
521 visit_exec_list(&ir
->body_instructions
, this);
522 nir_pop_loop(&b
, NULL
);
526 nir_visitor::visit(ir_if
*ir
)
528 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
529 visit_exec_list(&ir
->then_instructions
, this);
530 nir_push_else(&b
, NULL
);
531 visit_exec_list(&ir
->else_instructions
, this);
532 nir_pop_if(&b
, NULL
);
536 nir_visitor::visit(ir_discard
*ir
)
539 * discards aren't treated as control flow, because before we lower them
540 * they can appear anywhere in the shader and the stuff after them may still
541 * be executed (yay, crazy GLSL rules!). However, after lowering, all the
542 * discards will be immediately followed by a return.
545 nir_intrinsic_instr
*discard
;
547 discard
= nir_intrinsic_instr_create(this->shader
,
548 nir_intrinsic_discard_if
);
550 nir_src_for_ssa(evaluate_rvalue(ir
->condition
));
552 discard
= nir_intrinsic_instr_create(this->shader
, nir_intrinsic_discard
);
555 nir_builder_instr_insert(&b
, &discard
->instr
);
559 nir_visitor::visit(ir_emit_vertex
*ir
)
561 nir_intrinsic_instr
*instr
=
562 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_emit_vertex
);
563 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
564 nir_builder_instr_insert(&b
, &instr
->instr
);
568 nir_visitor::visit(ir_end_primitive
*ir
)
570 nir_intrinsic_instr
*instr
=
571 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_end_primitive
);
572 nir_intrinsic_set_stream_id(instr
, ir
->stream_id());
573 nir_builder_instr_insert(&b
, &instr
->instr
);
577 nir_visitor::visit(ir_loop_jump
*ir
)
581 case ir_loop_jump::jump_break
:
582 type
= nir_jump_break
;
584 case ir_loop_jump::jump_continue
:
585 type
= nir_jump_continue
;
588 unreachable("not reached");
591 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, type
);
592 nir_builder_instr_insert(&b
, &instr
->instr
);
596 nir_visitor::visit(ir_return
*ir
)
598 assert(ir
->value
== NULL
);
599 nir_jump_instr
*instr
= nir_jump_instr_create(this->shader
, nir_jump_return
);
600 nir_builder_instr_insert(&b
, &instr
->instr
);
604 intrinsic_set_std430_align(nir_intrinsic_instr
*intrin
, const glsl_type
*type
)
606 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
607 unsigned pow2_components
= util_next_power_of_two(type
->vector_elements
);
608 nir_intrinsic_set_align(intrin
, (bit_size
/ 8) * pow2_components
, 0);
612 nir_visitor::visit(ir_call
*ir
)
614 if (ir
->callee
->is_intrinsic()) {
617 switch (ir
->callee
->intrinsic_id
) {
618 case ir_intrinsic_atomic_counter_read
:
619 op
= nir_intrinsic_atomic_counter_read_deref
;
621 case ir_intrinsic_atomic_counter_increment
:
622 op
= nir_intrinsic_atomic_counter_inc_deref
;
624 case ir_intrinsic_atomic_counter_predecrement
:
625 op
= nir_intrinsic_atomic_counter_pre_dec_deref
;
627 case ir_intrinsic_atomic_counter_add
:
628 op
= nir_intrinsic_atomic_counter_add_deref
;
630 case ir_intrinsic_atomic_counter_and
:
631 op
= nir_intrinsic_atomic_counter_and_deref
;
633 case ir_intrinsic_atomic_counter_or
:
634 op
= nir_intrinsic_atomic_counter_or_deref
;
636 case ir_intrinsic_atomic_counter_xor
:
637 op
= nir_intrinsic_atomic_counter_xor_deref
;
639 case ir_intrinsic_atomic_counter_min
:
640 op
= nir_intrinsic_atomic_counter_min_deref
;
642 case ir_intrinsic_atomic_counter_max
:
643 op
= nir_intrinsic_atomic_counter_max_deref
;
645 case ir_intrinsic_atomic_counter_exchange
:
646 op
= nir_intrinsic_atomic_counter_exchange_deref
;
648 case ir_intrinsic_atomic_counter_comp_swap
:
649 op
= nir_intrinsic_atomic_counter_comp_swap_deref
;
651 case ir_intrinsic_image_load
:
652 op
= nir_intrinsic_image_deref_load
;
654 case ir_intrinsic_image_store
:
655 op
= nir_intrinsic_image_deref_store
;
657 case ir_intrinsic_image_atomic_add
:
658 op
= ir
->return_deref
->type
->is_integer_32_64()
659 ? nir_intrinsic_image_deref_atomic_add
660 : nir_intrinsic_image_deref_atomic_fadd
;
662 case ir_intrinsic_image_atomic_min
:
663 op
= nir_intrinsic_image_deref_atomic_min
;
665 case ir_intrinsic_image_atomic_max
:
666 op
= nir_intrinsic_image_deref_atomic_max
;
668 case ir_intrinsic_image_atomic_and
:
669 op
= nir_intrinsic_image_deref_atomic_and
;
671 case ir_intrinsic_image_atomic_or
:
672 op
= nir_intrinsic_image_deref_atomic_or
;
674 case ir_intrinsic_image_atomic_xor
:
675 op
= nir_intrinsic_image_deref_atomic_xor
;
677 case ir_intrinsic_image_atomic_exchange
:
678 op
= nir_intrinsic_image_deref_atomic_exchange
;
680 case ir_intrinsic_image_atomic_comp_swap
:
681 op
= nir_intrinsic_image_deref_atomic_comp_swap
;
683 case ir_intrinsic_memory_barrier
:
684 op
= nir_intrinsic_memory_barrier
;
686 case ir_intrinsic_image_size
:
687 op
= nir_intrinsic_image_deref_size
;
689 case ir_intrinsic_image_samples
:
690 op
= nir_intrinsic_image_deref_samples
;
692 case ir_intrinsic_ssbo_store
:
693 op
= nir_intrinsic_store_ssbo
;
695 case ir_intrinsic_ssbo_load
:
696 op
= nir_intrinsic_load_ssbo
;
698 case ir_intrinsic_ssbo_atomic_add
:
699 op
= ir
->return_deref
->type
->is_integer_32_64()
700 ? nir_intrinsic_ssbo_atomic_add
: nir_intrinsic_ssbo_atomic_fadd
;
702 case ir_intrinsic_ssbo_atomic_and
:
703 op
= nir_intrinsic_ssbo_atomic_and
;
705 case ir_intrinsic_ssbo_atomic_or
:
706 op
= nir_intrinsic_ssbo_atomic_or
;
708 case ir_intrinsic_ssbo_atomic_xor
:
709 op
= nir_intrinsic_ssbo_atomic_xor
;
711 case ir_intrinsic_ssbo_atomic_min
:
712 assert(ir
->return_deref
);
713 if (ir
->return_deref
->type
== glsl_type::int_type
)
714 op
= nir_intrinsic_ssbo_atomic_imin
;
715 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
716 op
= nir_intrinsic_ssbo_atomic_umin
;
717 else if (ir
->return_deref
->type
== glsl_type::float_type
)
718 op
= nir_intrinsic_ssbo_atomic_fmin
;
720 unreachable("Invalid type");
722 case ir_intrinsic_ssbo_atomic_max
:
723 assert(ir
->return_deref
);
724 if (ir
->return_deref
->type
== glsl_type::int_type
)
725 op
= nir_intrinsic_ssbo_atomic_imax
;
726 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
727 op
= nir_intrinsic_ssbo_atomic_umax
;
728 else if (ir
->return_deref
->type
== glsl_type::float_type
)
729 op
= nir_intrinsic_ssbo_atomic_fmax
;
731 unreachable("Invalid type");
733 case ir_intrinsic_ssbo_atomic_exchange
:
734 op
= nir_intrinsic_ssbo_atomic_exchange
;
736 case ir_intrinsic_ssbo_atomic_comp_swap
:
737 op
= ir
->return_deref
->type
->is_integer_32_64()
738 ? nir_intrinsic_ssbo_atomic_comp_swap
739 : nir_intrinsic_ssbo_atomic_fcomp_swap
;
741 case ir_intrinsic_shader_clock
:
742 op
= nir_intrinsic_shader_clock
;
744 case ir_intrinsic_begin_invocation_interlock
:
745 op
= nir_intrinsic_begin_invocation_interlock
;
747 case ir_intrinsic_end_invocation_interlock
:
748 op
= nir_intrinsic_end_invocation_interlock
;
750 case ir_intrinsic_begin_fragment_shader_ordering
:
751 op
= nir_intrinsic_begin_fragment_shader_ordering
;
753 case ir_intrinsic_group_memory_barrier
:
754 op
= nir_intrinsic_group_memory_barrier
;
756 case ir_intrinsic_memory_barrier_atomic_counter
:
757 op
= nir_intrinsic_memory_barrier_atomic_counter
;
759 case ir_intrinsic_memory_barrier_buffer
:
760 op
= nir_intrinsic_memory_barrier_buffer
;
762 case ir_intrinsic_memory_barrier_image
:
763 op
= nir_intrinsic_memory_barrier_image
;
765 case ir_intrinsic_memory_barrier_shared
:
766 op
= nir_intrinsic_memory_barrier_shared
;
768 case ir_intrinsic_shared_load
:
769 op
= nir_intrinsic_load_shared
;
771 case ir_intrinsic_shared_store
:
772 op
= nir_intrinsic_store_shared
;
774 case ir_intrinsic_shared_atomic_add
:
775 op
= ir
->return_deref
->type
->is_integer_32_64()
776 ? nir_intrinsic_shared_atomic_add
777 : nir_intrinsic_shared_atomic_fadd
;
779 case ir_intrinsic_shared_atomic_and
:
780 op
= nir_intrinsic_shared_atomic_and
;
782 case ir_intrinsic_shared_atomic_or
:
783 op
= nir_intrinsic_shared_atomic_or
;
785 case ir_intrinsic_shared_atomic_xor
:
786 op
= nir_intrinsic_shared_atomic_xor
;
788 case ir_intrinsic_shared_atomic_min
:
789 assert(ir
->return_deref
);
790 if (ir
->return_deref
->type
== glsl_type::int_type
)
791 op
= nir_intrinsic_shared_atomic_imin
;
792 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
793 op
= nir_intrinsic_shared_atomic_umin
;
794 else if (ir
->return_deref
->type
== glsl_type::float_type
)
795 op
= nir_intrinsic_shared_atomic_fmin
;
797 unreachable("Invalid type");
799 case ir_intrinsic_shared_atomic_max
:
800 assert(ir
->return_deref
);
801 if (ir
->return_deref
->type
== glsl_type::int_type
)
802 op
= nir_intrinsic_shared_atomic_imax
;
803 else if (ir
->return_deref
->type
== glsl_type::uint_type
)
804 op
= nir_intrinsic_shared_atomic_umax
;
805 else if (ir
->return_deref
->type
== glsl_type::float_type
)
806 op
= nir_intrinsic_shared_atomic_fmax
;
808 unreachable("Invalid type");
810 case ir_intrinsic_shared_atomic_exchange
:
811 op
= nir_intrinsic_shared_atomic_exchange
;
813 case ir_intrinsic_shared_atomic_comp_swap
:
814 op
= ir
->return_deref
->type
->is_integer_32_64()
815 ? nir_intrinsic_shared_atomic_comp_swap
816 : nir_intrinsic_shared_atomic_fcomp_swap
;
818 case ir_intrinsic_vote_any
:
819 op
= nir_intrinsic_vote_any
;
821 case ir_intrinsic_vote_all
:
822 op
= nir_intrinsic_vote_all
;
824 case ir_intrinsic_vote_eq
:
825 op
= nir_intrinsic_vote_ieq
;
827 case ir_intrinsic_ballot
:
828 op
= nir_intrinsic_ballot
;
830 case ir_intrinsic_read_invocation
:
831 op
= nir_intrinsic_read_invocation
;
833 case ir_intrinsic_read_first_invocation
:
834 op
= nir_intrinsic_read_first_invocation
;
837 unreachable("not reached");
840 nir_intrinsic_instr
*instr
= nir_intrinsic_instr_create(shader
, op
);
841 nir_ssa_def
*ret
= &instr
->dest
.ssa
;
844 case nir_intrinsic_atomic_counter_read_deref
:
845 case nir_intrinsic_atomic_counter_inc_deref
:
846 case nir_intrinsic_atomic_counter_pre_dec_deref
:
847 case nir_intrinsic_atomic_counter_add_deref
:
848 case nir_intrinsic_atomic_counter_min_deref
:
849 case nir_intrinsic_atomic_counter_max_deref
:
850 case nir_intrinsic_atomic_counter_and_deref
:
851 case nir_intrinsic_atomic_counter_or_deref
:
852 case nir_intrinsic_atomic_counter_xor_deref
:
853 case nir_intrinsic_atomic_counter_exchange_deref
:
854 case nir_intrinsic_atomic_counter_comp_swap_deref
: {
855 /* Set the counter variable dereference. */
856 exec_node
*param
= ir
->actual_parameters
.get_head();
857 ir_dereference
*counter
= (ir_dereference
*)param
;
859 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(counter
)->dest
.ssa
);
860 param
= param
->get_next();
862 /* Set the intrinsic destination. */
863 if (ir
->return_deref
) {
864 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
867 /* Set the intrinsic parameters. */
868 if (!param
->is_tail_sentinel()) {
870 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
871 param
= param
->get_next();
874 if (!param
->is_tail_sentinel()) {
876 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
877 param
= param
->get_next();
880 nir_builder_instr_insert(&b
, &instr
->instr
);
883 case nir_intrinsic_image_deref_load
:
884 case nir_intrinsic_image_deref_store
:
885 case nir_intrinsic_image_deref_atomic_add
:
886 case nir_intrinsic_image_deref_atomic_min
:
887 case nir_intrinsic_image_deref_atomic_max
:
888 case nir_intrinsic_image_deref_atomic_and
:
889 case nir_intrinsic_image_deref_atomic_or
:
890 case nir_intrinsic_image_deref_atomic_xor
:
891 case nir_intrinsic_image_deref_atomic_exchange
:
892 case nir_intrinsic_image_deref_atomic_comp_swap
:
893 case nir_intrinsic_image_deref_atomic_fadd
:
894 case nir_intrinsic_image_deref_samples
:
895 case nir_intrinsic_image_deref_size
: {
896 nir_ssa_undef_instr
*instr_undef
=
897 nir_ssa_undef_instr_create(shader
, 1, 32);
898 nir_builder_instr_insert(&b
, &instr_undef
->instr
);
900 /* Set the image variable dereference. */
901 exec_node
*param
= ir
->actual_parameters
.get_head();
902 ir_dereference
*image
= (ir_dereference
*)param
;
903 const glsl_type
*type
=
904 image
->variable_referenced()->type
->without_array();
906 instr
->src
[0] = nir_src_for_ssa(&evaluate_deref(image
)->dest
.ssa
);
907 param
= param
->get_next();
909 /* Set the intrinsic destination. */
910 if (ir
->return_deref
) {
911 unsigned num_components
= ir
->return_deref
->type
->vector_elements
;
912 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
913 num_components
, 32, NULL
);
916 if (op
== nir_intrinsic_image_deref_size
) {
917 instr
->num_components
= instr
->dest
.ssa
.num_components
;
918 } else if (op
== nir_intrinsic_image_deref_load
||
919 op
== nir_intrinsic_image_deref_store
) {
920 instr
->num_components
= 4;
923 if (op
== nir_intrinsic_image_deref_size
||
924 op
== nir_intrinsic_image_deref_samples
) {
925 nir_builder_instr_insert(&b
, &instr
->instr
);
929 /* Set the address argument, extending the coordinate vector to four
932 nir_ssa_def
*src_addr
=
933 evaluate_rvalue((ir_dereference
*)param
);
934 nir_ssa_def
*srcs
[4];
936 for (int i
= 0; i
< 4; i
++) {
937 if (i
< type
->coordinate_components())
938 srcs
[i
] = nir_channel(&b
, src_addr
, i
);
940 srcs
[i
] = &instr_undef
->def
;
943 instr
->src
[1] = nir_src_for_ssa(nir_vec(&b
, srcs
, 4));
944 param
= param
->get_next();
946 /* Set the sample argument, which is undefined for single-sample
949 if (type
->sampler_dimensionality
== GLSL_SAMPLER_DIM_MS
) {
951 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
952 param
= param
->get_next();
954 instr
->src
[2] = nir_src_for_ssa(&instr_undef
->def
);
957 /* Set the intrinsic parameters. */
958 if (!param
->is_tail_sentinel()) {
960 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
961 param
= param
->get_next();
964 if (!param
->is_tail_sentinel()) {
966 nir_src_for_ssa(evaluate_rvalue((ir_dereference
*)param
));
967 param
= param
->get_next();
969 nir_builder_instr_insert(&b
, &instr
->instr
);
972 case nir_intrinsic_memory_barrier
:
973 case nir_intrinsic_group_memory_barrier
:
974 case nir_intrinsic_memory_barrier_atomic_counter
:
975 case nir_intrinsic_memory_barrier_buffer
:
976 case nir_intrinsic_memory_barrier_image
:
977 case nir_intrinsic_memory_barrier_shared
:
978 nir_builder_instr_insert(&b
, &instr
->instr
);
980 case nir_intrinsic_shader_clock
:
981 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 2, 32, NULL
);
982 instr
->num_components
= 2;
983 nir_builder_instr_insert(&b
, &instr
->instr
);
985 case nir_intrinsic_begin_invocation_interlock
:
986 nir_builder_instr_insert(&b
, &instr
->instr
);
988 case nir_intrinsic_end_invocation_interlock
:
989 nir_builder_instr_insert(&b
, &instr
->instr
);
991 case nir_intrinsic_begin_fragment_shader_ordering
:
992 nir_builder_instr_insert(&b
, &instr
->instr
);
994 case nir_intrinsic_store_ssbo
: {
995 exec_node
*param
= ir
->actual_parameters
.get_head();
996 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
998 param
= param
->get_next();
999 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1001 param
= param
->get_next();
1002 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1004 param
= param
->get_next();
1005 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1008 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1009 assert(!val
->type
->is_boolean() || nir_val
->bit_size
== 32);
1011 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1012 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(block
));
1013 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(offset
));
1014 intrinsic_set_std430_align(instr
, val
->type
);
1015 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1016 instr
->num_components
= val
->type
->vector_elements
;
1018 nir_builder_instr_insert(&b
, &instr
->instr
);
1021 case nir_intrinsic_load_ssbo
: {
1022 exec_node
*param
= ir
->actual_parameters
.get_head();
1023 ir_rvalue
*block
= ((ir_instruction
*)param
)->as_rvalue();
1025 param
= param
->get_next();
1026 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1028 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(block
));
1029 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1031 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1032 instr
->num_components
= type
->vector_elements
;
1033 intrinsic_set_std430_align(instr
, type
);
1035 /* Setup destination register */
1036 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1037 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1038 type
->vector_elements
, bit_size
, NULL
);
1040 /* Insert the created nir instruction now since in the case of boolean
1041 * result we will need to emit another instruction after it
1043 nir_builder_instr_insert(&b
, &instr
->instr
);
1046 * In SSBO/UBO's, a true boolean value is any non-zero value, but we
1047 * consider a true boolean to be ~0. Fix this up with a != 0
1050 if (type
->is_boolean())
1051 ret
= nir_i2b(&b
, &instr
->dest
.ssa
);
1054 case nir_intrinsic_ssbo_atomic_add
:
1055 case nir_intrinsic_ssbo_atomic_imin
:
1056 case nir_intrinsic_ssbo_atomic_umin
:
1057 case nir_intrinsic_ssbo_atomic_imax
:
1058 case nir_intrinsic_ssbo_atomic_umax
:
1059 case nir_intrinsic_ssbo_atomic_and
:
1060 case nir_intrinsic_ssbo_atomic_or
:
1061 case nir_intrinsic_ssbo_atomic_xor
:
1062 case nir_intrinsic_ssbo_atomic_exchange
:
1063 case nir_intrinsic_ssbo_atomic_comp_swap
:
1064 case nir_intrinsic_ssbo_atomic_fadd
:
1065 case nir_intrinsic_ssbo_atomic_fmin
:
1066 case nir_intrinsic_ssbo_atomic_fmax
:
1067 case nir_intrinsic_ssbo_atomic_fcomp_swap
: {
1068 int param_count
= ir
->actual_parameters
.length();
1069 assert(param_count
== 3 || param_count
== 4);
1072 exec_node
*param
= ir
->actual_parameters
.get_head();
1073 ir_instruction
*inst
= (ir_instruction
*) param
;
1074 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1077 param
= param
->get_next();
1078 inst
= (ir_instruction
*) param
;
1079 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1081 /* data1 parameter (this is always present) */
1082 param
= param
->get_next();
1083 inst
= (ir_instruction
*) param
;
1084 instr
->src
[2] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1086 /* data2 parameter (only with atomic_comp_swap) */
1087 if (param_count
== 4) {
1088 assert(op
== nir_intrinsic_ssbo_atomic_comp_swap
||
1089 op
== nir_intrinsic_ssbo_atomic_fcomp_swap
);
1090 param
= param
->get_next();
1091 inst
= (ir_instruction
*) param
;
1092 instr
->src
[3] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1096 assert(ir
->return_deref
);
1097 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1098 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1099 nir_builder_instr_insert(&b
, &instr
->instr
);
1102 case nir_intrinsic_load_shared
: {
1103 exec_node
*param
= ir
->actual_parameters
.get_head();
1104 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1106 nir_intrinsic_set_base(instr
, 0);
1107 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(offset
));
1109 const glsl_type
*type
= ir
->return_deref
->var
->type
;
1110 instr
->num_components
= type
->vector_elements
;
1111 intrinsic_set_std430_align(instr
, type
);
1113 /* Setup destination register */
1114 unsigned bit_size
= type
->is_boolean() ? 32 : glsl_get_bit_size(type
);
1115 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1116 type
->vector_elements
, bit_size
, NULL
);
1118 nir_builder_instr_insert(&b
, &instr
->instr
);
1121 case nir_intrinsic_store_shared
: {
1122 exec_node
*param
= ir
->actual_parameters
.get_head();
1123 ir_rvalue
*offset
= ((ir_instruction
*)param
)->as_rvalue();
1125 param
= param
->get_next();
1126 ir_rvalue
*val
= ((ir_instruction
*)param
)->as_rvalue();
1128 param
= param
->get_next();
1129 ir_constant
*write_mask
= ((ir_instruction
*)param
)->as_constant();
1132 nir_intrinsic_set_base(instr
, 0);
1133 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(offset
));
1135 nir_intrinsic_set_write_mask(instr
, write_mask
->value
.u
[0]);
1137 nir_ssa_def
*nir_val
= evaluate_rvalue(val
);
1138 assert(!val
->type
->is_boolean() || nir_val
->bit_size
== 32);
1140 instr
->src
[0] = nir_src_for_ssa(nir_val
);
1141 instr
->num_components
= val
->type
->vector_elements
;
1142 intrinsic_set_std430_align(instr
, val
->type
);
1144 nir_builder_instr_insert(&b
, &instr
->instr
);
1147 case nir_intrinsic_shared_atomic_add
:
1148 case nir_intrinsic_shared_atomic_imin
:
1149 case nir_intrinsic_shared_atomic_umin
:
1150 case nir_intrinsic_shared_atomic_imax
:
1151 case nir_intrinsic_shared_atomic_umax
:
1152 case nir_intrinsic_shared_atomic_and
:
1153 case nir_intrinsic_shared_atomic_or
:
1154 case nir_intrinsic_shared_atomic_xor
:
1155 case nir_intrinsic_shared_atomic_exchange
:
1156 case nir_intrinsic_shared_atomic_comp_swap
:
1157 case nir_intrinsic_shared_atomic_fadd
:
1158 case nir_intrinsic_shared_atomic_fmin
:
1159 case nir_intrinsic_shared_atomic_fmax
:
1160 case nir_intrinsic_shared_atomic_fcomp_swap
: {
1161 int param_count
= ir
->actual_parameters
.length();
1162 assert(param_count
== 2 || param_count
== 3);
1165 exec_node
*param
= ir
->actual_parameters
.get_head();
1166 ir_instruction
*inst
= (ir_instruction
*) param
;
1167 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1169 /* data1 parameter (this is always present) */
1170 param
= param
->get_next();
1171 inst
= (ir_instruction
*) param
;
1172 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1174 /* data2 parameter (only with atomic_comp_swap) */
1175 if (param_count
== 3) {
1176 assert(op
== nir_intrinsic_shared_atomic_comp_swap
||
1177 op
== nir_intrinsic_shared_atomic_fcomp_swap
);
1178 param
= param
->get_next();
1179 inst
= (ir_instruction
*) param
;
1181 nir_src_for_ssa(evaluate_rvalue(inst
->as_rvalue()));
1185 assert(ir
->return_deref
);
1186 unsigned bit_size
= glsl_get_bit_size(ir
->return_deref
->type
);
1187 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1188 ir
->return_deref
->type
->vector_elements
,
1190 nir_builder_instr_insert(&b
, &instr
->instr
);
1193 case nir_intrinsic_vote_any
:
1194 case nir_intrinsic_vote_all
:
1195 case nir_intrinsic_vote_ieq
: {
1196 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
, 1, 32, NULL
);
1197 instr
->num_components
= 1;
1199 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1200 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1202 nir_builder_instr_insert(&b
, &instr
->instr
);
1206 case nir_intrinsic_ballot
: {
1207 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1208 ir
->return_deref
->type
->vector_elements
, 64, NULL
);
1209 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1211 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1212 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1214 nir_builder_instr_insert(&b
, &instr
->instr
);
1217 case nir_intrinsic_read_invocation
: {
1218 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1219 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1220 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1222 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1223 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1225 ir_rvalue
*invocation
= (ir_rvalue
*) ir
->actual_parameters
.get_head()->next
;
1226 instr
->src
[1] = nir_src_for_ssa(evaluate_rvalue(invocation
));
1228 nir_builder_instr_insert(&b
, &instr
->instr
);
1231 case nir_intrinsic_read_first_invocation
: {
1232 nir_ssa_dest_init(&instr
->instr
, &instr
->dest
,
1233 ir
->return_deref
->type
->vector_elements
, 32, NULL
);
1234 instr
->num_components
= ir
->return_deref
->type
->vector_elements
;
1236 ir_rvalue
*value
= (ir_rvalue
*) ir
->actual_parameters
.get_head();
1237 instr
->src
[0] = nir_src_for_ssa(evaluate_rvalue(value
));
1239 nir_builder_instr_insert(&b
, &instr
->instr
);
1243 unreachable("not reached");
1246 if (ir
->return_deref
)
1247 nir_store_deref(&b
, evaluate_deref(ir
->return_deref
), ret
, ~0);
1252 unreachable("glsl_to_nir only handles function calls to intrinsics");
1256 nir_visitor::visit(ir_assignment
*ir
)
1258 unsigned num_components
= ir
->lhs
->type
->vector_elements
;
1260 b
.exact
= ir
->lhs
->variable_referenced()->data
.invariant
||
1261 ir
->lhs
->variable_referenced()->data
.precise
;
1263 if ((ir
->rhs
->as_dereference() || ir
->rhs
->as_constant()) &&
1264 (ir
->write_mask
== (1 << num_components
) - 1 || ir
->write_mask
== 0)) {
1265 if (ir
->condition
) {
1266 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1267 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1268 nir_pop_if(&b
, NULL
);
1270 nir_copy_deref(&b
, evaluate_deref(ir
->lhs
), evaluate_deref(ir
->rhs
));
1275 assert(ir
->rhs
->type
->is_scalar() || ir
->rhs
->type
->is_vector());
1277 ir
->lhs
->accept(this);
1278 nir_deref_instr
*lhs_deref
= this->deref
;
1279 nir_ssa_def
*src
= evaluate_rvalue(ir
->rhs
);
1281 if (ir
->write_mask
!= (1 << num_components
) - 1 && ir
->write_mask
!= 0) {
1282 /* GLSL IR will give us the input to the write-masked assignment in a
1283 * single packed vector. So, for example, if the writemask is xzw, then
1284 * we have to swizzle x -> x, y -> z, and z -> w and get the y component
1288 unsigned component
= 0;
1289 for (unsigned i
= 0; i
< 4; i
++) {
1290 swiz
[i
] = ir
->write_mask
& (1 << i
) ? component
++ : 0;
1292 src
= nir_swizzle(&b
, src
, swiz
, num_components
, !supports_ints
);
1295 if (ir
->condition
) {
1296 nir_push_if(&b
, evaluate_rvalue(ir
->condition
));
1297 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1298 nir_pop_if(&b
, NULL
);
1300 nir_store_deref(&b
, lhs_deref
, src
, ir
->write_mask
);
1305 * Given an instruction, returns a pointer to its destination or NULL if there
1306 * is no destination.
1308 * Note that this only handles instructions we generate at this level.
1311 get_instr_dest(nir_instr
*instr
)
1313 nir_alu_instr
*alu_instr
;
1314 nir_intrinsic_instr
*intrinsic_instr
;
1315 nir_tex_instr
*tex_instr
;
1317 switch (instr
->type
) {
1318 case nir_instr_type_alu
:
1319 alu_instr
= nir_instr_as_alu(instr
);
1320 return &alu_instr
->dest
.dest
;
1322 case nir_instr_type_intrinsic
:
1323 intrinsic_instr
= nir_instr_as_intrinsic(instr
);
1324 if (nir_intrinsic_infos
[intrinsic_instr
->intrinsic
].has_dest
)
1325 return &intrinsic_instr
->dest
;
1329 case nir_instr_type_tex
:
1330 tex_instr
= nir_instr_as_tex(instr
);
1331 return &tex_instr
->dest
;
1334 unreachable("not reached");
1341 nir_visitor::add_instr(nir_instr
*instr
, unsigned num_components
,
1344 nir_dest
*dest
= get_instr_dest(instr
);
1347 nir_ssa_dest_init(instr
, dest
, num_components
, bit_size
, NULL
);
1349 nir_builder_instr_insert(&b
, instr
);
1352 assert(dest
->is_ssa
);
1353 this->result
= &dest
->ssa
;
1358 nir_visitor::evaluate_rvalue(ir_rvalue
* ir
)
1361 if (ir
->as_dereference() || ir
->as_constant()) {
1363 * A dereference is being used on the right hand side, which means we
1364 * must emit a variable load.
1367 this->result
= nir_load_deref(&b
, this->deref
);
1370 return this->result
;
1374 type_is_float(glsl_base_type type
)
1376 return type
== GLSL_TYPE_FLOAT
|| type
== GLSL_TYPE_DOUBLE
||
1377 type
== GLSL_TYPE_FLOAT16
;
1381 type_is_signed(glsl_base_type type
)
1383 return type
== GLSL_TYPE_INT
|| type
== GLSL_TYPE_INT64
||
1384 type
== GLSL_TYPE_INT16
;
1388 nir_visitor::visit(ir_expression
*ir
)
1390 /* Some special cases */
1391 switch (ir
->operation
) {
1392 case ir_binop_ubo_load
: {
1393 nir_intrinsic_instr
*load
=
1394 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_load_ubo
);
1395 unsigned bit_size
= ir
->type
->is_boolean() ? 32 :
1396 glsl_get_bit_size(ir
->type
);
1397 load
->num_components
= ir
->type
->vector_elements
;
1398 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1399 load
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1400 intrinsic_set_std430_align(load
, ir
->type
);
1401 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1404 * In UBO's, a true boolean value is any non-zero value, but we consider
1405 * a true boolean to be ~0. Fix this up with a != 0 comparison.
1408 if (ir
->type
->is_boolean())
1409 this->result
= nir_i2b(&b
, &load
->dest
.ssa
);
1414 case ir_unop_interpolate_at_centroid
:
1415 case ir_binop_interpolate_at_offset
:
1416 case ir_binop_interpolate_at_sample
: {
1417 ir_dereference
*deref
= ir
->operands
[0]->as_dereference();
1418 ir_swizzle
*swizzle
= NULL
;
1420 /* the api does not allow a swizzle here, but the varying packing code
1421 * may have pushed one into here.
1423 swizzle
= ir
->operands
[0]->as_swizzle();
1425 deref
= swizzle
->val
->as_dereference();
1429 deref
->accept(this);
1431 nir_intrinsic_op op
;
1432 if (this->deref
->mode
== nir_var_shader_in
) {
1433 switch (ir
->operation
) {
1434 case ir_unop_interpolate_at_centroid
:
1435 op
= nir_intrinsic_interp_deref_at_centroid
;
1437 case ir_binop_interpolate_at_offset
:
1438 op
= nir_intrinsic_interp_deref_at_offset
;
1440 case ir_binop_interpolate_at_sample
:
1441 op
= nir_intrinsic_interp_deref_at_sample
;
1444 unreachable("Invalid interpolation intrinsic");
1447 /* This case can happen if the vertex shader does not write the
1448 * given varying. In this case, the linker will lower it to a
1449 * global variable. Since interpolating a variable makes no
1450 * sense, we'll just turn it into a load which will probably
1451 * eventually end up as an SSA definition.
1453 assert(this->deref
->mode
== nir_var_global
);
1454 op
= nir_intrinsic_load_deref
;
1457 nir_intrinsic_instr
*intrin
= nir_intrinsic_instr_create(shader
, op
);
1458 intrin
->num_components
= deref
->type
->vector_elements
;
1459 intrin
->src
[0] = nir_src_for_ssa(&this->deref
->dest
.ssa
);
1461 if (intrin
->intrinsic
== nir_intrinsic_interp_deref_at_offset
||
1462 intrin
->intrinsic
== nir_intrinsic_interp_deref_at_sample
)
1463 intrin
->src
[1] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[1]));
1465 unsigned bit_size
= glsl_get_bit_size(deref
->type
);
1466 add_instr(&intrin
->instr
, deref
->type
->vector_elements
, bit_size
);
1469 unsigned swiz
[4] = {
1470 swizzle
->mask
.x
, swizzle
->mask
.y
, swizzle
->mask
.z
, swizzle
->mask
.w
1473 result
= nir_swizzle(&b
, result
, swiz
,
1474 swizzle
->type
->vector_elements
, false);
1484 nir_ssa_def
*srcs
[4];
1485 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1486 srcs
[i
] = evaluate_rvalue(ir
->operands
[i
]);
1488 glsl_base_type types
[4];
1489 for (unsigned i
= 0; i
< ir
->num_operands
; i
++)
1491 types
[i
] = ir
->operands
[i
]->type
->base_type
;
1493 types
[i
] = GLSL_TYPE_FLOAT
;
1495 glsl_base_type out_type
;
1497 out_type
= ir
->type
->base_type
;
1499 out_type
= GLSL_TYPE_FLOAT
;
1501 switch (ir
->operation
) {
1502 case ir_unop_bit_not
: result
= nir_inot(&b
, srcs
[0]); break;
1503 case ir_unop_logic_not
:
1504 result
= supports_ints
? nir_inot(&b
, srcs
[0]) : nir_fnot(&b
, srcs
[0]);
1507 result
= type_is_float(types
[0]) ? nir_fneg(&b
, srcs
[0])
1508 : nir_ineg(&b
, srcs
[0]);
1511 result
= type_is_float(types
[0]) ? nir_fabs(&b
, srcs
[0])
1512 : nir_iabs(&b
, srcs
[0]);
1514 case ir_unop_saturate
:
1515 assert(type_is_float(types
[0]));
1516 result
= nir_fsat(&b
, srcs
[0]);
1519 result
= type_is_float(types
[0]) ? nir_fsign(&b
, srcs
[0])
1520 : nir_isign(&b
, srcs
[0]);
1522 case ir_unop_rcp
: result
= nir_frcp(&b
, srcs
[0]); break;
1523 case ir_unop_rsq
: result
= nir_frsq(&b
, srcs
[0]); break;
1524 case ir_unop_sqrt
: result
= nir_fsqrt(&b
, srcs
[0]); break;
1525 case ir_unop_exp
: unreachable("ir_unop_exp should have been lowered");
1526 case ir_unop_log
: unreachable("ir_unop_log should have been lowered");
1527 case ir_unop_exp2
: result
= nir_fexp2(&b
, srcs
[0]); break;
1528 case ir_unop_log2
: result
= nir_flog2(&b
, srcs
[0]); break;
1530 result
= supports_ints
? nir_i2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1533 result
= supports_ints
? nir_u2f32(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1536 result
= supports_ints
? nir_b2f(&b
, srcs
[0]) : nir_fmov(&b
, srcs
[0]);
1570 case ir_unop_i642u64
:
1571 case ir_unop_u642i64
: {
1572 nir_alu_type src_type
= nir_get_nir_type_for_glsl_base_type(types
[0]);
1573 nir_alu_type dst_type
= nir_get_nir_type_for_glsl_base_type(out_type
);
1574 result
= nir_build_alu(&b
, nir_type_conversion_op(src_type
, dst_type
,
1575 nir_rounding_mode_undef
),
1576 srcs
[0], NULL
, NULL
, NULL
);
1577 /* b2i and b2f don't have fixed bit-size versions so the builder will
1578 * just assume 32 and we have to fix it up here.
1580 result
->bit_size
= nir_alu_type_get_type_size(dst_type
);
1584 case ir_unop_bitcast_i2f
:
1585 case ir_unop_bitcast_f2i
:
1586 case ir_unop_bitcast_u2f
:
1587 case ir_unop_bitcast_f2u
:
1588 case ir_unop_bitcast_i642d
:
1589 case ir_unop_bitcast_d2i64
:
1590 case ir_unop_bitcast_u642d
:
1591 case ir_unop_bitcast_d2u64
:
1592 case ir_unop_subroutine_to_int
:
1594 result
= nir_imov(&b
, srcs
[0]);
1596 case ir_unop_trunc
: result
= nir_ftrunc(&b
, srcs
[0]); break;
1597 case ir_unop_ceil
: result
= nir_fceil(&b
, srcs
[0]); break;
1598 case ir_unop_floor
: result
= nir_ffloor(&b
, srcs
[0]); break;
1599 case ir_unop_fract
: result
= nir_ffract(&b
, srcs
[0]); break;
1600 case ir_unop_frexp_exp
: result
= nir_frexp_exp(&b
, srcs
[0]); break;
1601 case ir_unop_frexp_sig
: result
= nir_frexp_sig(&b
, srcs
[0]); break;
1602 case ir_unop_round_even
: result
= nir_fround_even(&b
, srcs
[0]); break;
1603 case ir_unop_sin
: result
= nir_fsin(&b
, srcs
[0]); break;
1604 case ir_unop_cos
: result
= nir_fcos(&b
, srcs
[0]); break;
1605 case ir_unop_dFdx
: result
= nir_fddx(&b
, srcs
[0]); break;
1606 case ir_unop_dFdy
: result
= nir_fddy(&b
, srcs
[0]); break;
1607 case ir_unop_dFdx_fine
: result
= nir_fddx_fine(&b
, srcs
[0]); break;
1608 case ir_unop_dFdy_fine
: result
= nir_fddy_fine(&b
, srcs
[0]); break;
1609 case ir_unop_dFdx_coarse
: result
= nir_fddx_coarse(&b
, srcs
[0]); break;
1610 case ir_unop_dFdy_coarse
: result
= nir_fddy_coarse(&b
, srcs
[0]); break;
1611 case ir_unop_pack_snorm_2x16
:
1612 result
= nir_pack_snorm_2x16(&b
, srcs
[0]);
1614 case ir_unop_pack_snorm_4x8
:
1615 result
= nir_pack_snorm_4x8(&b
, srcs
[0]);
1617 case ir_unop_pack_unorm_2x16
:
1618 result
= nir_pack_unorm_2x16(&b
, srcs
[0]);
1620 case ir_unop_pack_unorm_4x8
:
1621 result
= nir_pack_unorm_4x8(&b
, srcs
[0]);
1623 case ir_unop_pack_half_2x16
:
1624 result
= nir_pack_half_2x16(&b
, srcs
[0]);
1626 case ir_unop_unpack_snorm_2x16
:
1627 result
= nir_unpack_snorm_2x16(&b
, srcs
[0]);
1629 case ir_unop_unpack_snorm_4x8
:
1630 result
= nir_unpack_snorm_4x8(&b
, srcs
[0]);
1632 case ir_unop_unpack_unorm_2x16
:
1633 result
= nir_unpack_unorm_2x16(&b
, srcs
[0]);
1635 case ir_unop_unpack_unorm_4x8
:
1636 result
= nir_unpack_unorm_4x8(&b
, srcs
[0]);
1638 case ir_unop_unpack_half_2x16
:
1639 result
= nir_unpack_half_2x16(&b
, srcs
[0]);
1641 case ir_unop_pack_sampler_2x32
:
1642 case ir_unop_pack_image_2x32
:
1643 case ir_unop_pack_double_2x32
:
1644 case ir_unop_pack_int_2x32
:
1645 case ir_unop_pack_uint_2x32
:
1646 result
= nir_pack_64_2x32(&b
, srcs
[0]);
1648 case ir_unop_unpack_sampler_2x32
:
1649 case ir_unop_unpack_image_2x32
:
1650 case ir_unop_unpack_double_2x32
:
1651 case ir_unop_unpack_int_2x32
:
1652 case ir_unop_unpack_uint_2x32
:
1653 result
= nir_unpack_64_2x32(&b
, srcs
[0]);
1655 case ir_unop_bitfield_reverse
:
1656 result
= nir_bitfield_reverse(&b
, srcs
[0]);
1658 case ir_unop_bit_count
:
1659 result
= nir_bit_count(&b
, srcs
[0]);
1661 case ir_unop_find_msb
:
1663 case GLSL_TYPE_UINT
:
1664 result
= nir_ufind_msb(&b
, srcs
[0]);
1667 result
= nir_ifind_msb(&b
, srcs
[0]);
1670 unreachable("Invalid type for findMSB()");
1673 case ir_unop_find_lsb
:
1674 result
= nir_find_lsb(&b
, srcs
[0]);
1678 switch (ir
->type
->vector_elements
) {
1680 switch (ir
->operands
[0]->type
->vector_elements
) {
1681 case 1: result
= nir_fnoise1_1(&b
, srcs
[0]); break;
1682 case 2: result
= nir_fnoise1_2(&b
, srcs
[0]); break;
1683 case 3: result
= nir_fnoise1_3(&b
, srcs
[0]); break;
1684 case 4: result
= nir_fnoise1_4(&b
, srcs
[0]); break;
1685 default: unreachable("not reached");
1689 switch (ir
->operands
[0]->type
->vector_elements
) {
1690 case 1: result
= nir_fnoise2_1(&b
, srcs
[0]); break;
1691 case 2: result
= nir_fnoise2_2(&b
, srcs
[0]); break;
1692 case 3: result
= nir_fnoise2_3(&b
, srcs
[0]); break;
1693 case 4: result
= nir_fnoise2_4(&b
, srcs
[0]); break;
1694 default: unreachable("not reached");
1698 switch (ir
->operands
[0]->type
->vector_elements
) {
1699 case 1: result
= nir_fnoise3_1(&b
, srcs
[0]); break;
1700 case 2: result
= nir_fnoise3_2(&b
, srcs
[0]); break;
1701 case 3: result
= nir_fnoise3_3(&b
, srcs
[0]); break;
1702 case 4: result
= nir_fnoise3_4(&b
, srcs
[0]); break;
1703 default: unreachable("not reached");
1707 switch (ir
->operands
[0]->type
->vector_elements
) {
1708 case 1: result
= nir_fnoise4_1(&b
, srcs
[0]); break;
1709 case 2: result
= nir_fnoise4_2(&b
, srcs
[0]); break;
1710 case 3: result
= nir_fnoise4_3(&b
, srcs
[0]); break;
1711 case 4: result
= nir_fnoise4_4(&b
, srcs
[0]); break;
1712 default: unreachable("not reached");
1716 unreachable("not reached");
1719 case ir_unop_get_buffer_size
: {
1720 nir_intrinsic_instr
*load
= nir_intrinsic_instr_create(
1722 nir_intrinsic_get_buffer_size
);
1723 load
->num_components
= ir
->type
->vector_elements
;
1724 load
->src
[0] = nir_src_for_ssa(evaluate_rvalue(ir
->operands
[0]));
1725 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
1726 add_instr(&load
->instr
, ir
->type
->vector_elements
, bit_size
);
1731 result
= type_is_float(out_type
) ? nir_fadd(&b
, srcs
[0], srcs
[1])
1732 : nir_iadd(&b
, srcs
[0], srcs
[1]);
1735 result
= type_is_float(out_type
) ? nir_fsub(&b
, srcs
[0], srcs
[1])
1736 : nir_isub(&b
, srcs
[0], srcs
[1]);
1739 result
= type_is_float(out_type
) ? nir_fmul(&b
, srcs
[0], srcs
[1])
1740 : nir_imul(&b
, srcs
[0], srcs
[1]);
1743 if (type_is_float(out_type
))
1744 result
= nir_fdiv(&b
, srcs
[0], srcs
[1]);
1745 else if (type_is_signed(out_type
))
1746 result
= nir_idiv(&b
, srcs
[0], srcs
[1]);
1748 result
= nir_udiv(&b
, srcs
[0], srcs
[1]);
1751 result
= type_is_float(out_type
) ? nir_fmod(&b
, srcs
[0], srcs
[1])
1752 : nir_umod(&b
, srcs
[0], srcs
[1]);
1755 if (type_is_float(out_type
))
1756 result
= nir_fmin(&b
, srcs
[0], srcs
[1]);
1757 else if (type_is_signed(out_type
))
1758 result
= nir_imin(&b
, srcs
[0], srcs
[1]);
1760 result
= nir_umin(&b
, srcs
[0], srcs
[1]);
1763 if (type_is_float(out_type
))
1764 result
= nir_fmax(&b
, srcs
[0], srcs
[1]);
1765 else if (type_is_signed(out_type
))
1766 result
= nir_imax(&b
, srcs
[0], srcs
[1]);
1768 result
= nir_umax(&b
, srcs
[0], srcs
[1]);
1770 case ir_binop_pow
: result
= nir_fpow(&b
, srcs
[0], srcs
[1]); break;
1771 case ir_binop_bit_and
: result
= nir_iand(&b
, srcs
[0], srcs
[1]); break;
1772 case ir_binop_bit_or
: result
= nir_ior(&b
, srcs
[0], srcs
[1]); break;
1773 case ir_binop_bit_xor
: result
= nir_ixor(&b
, srcs
[0], srcs
[1]); break;
1774 case ir_binop_logic_and
:
1775 result
= supports_ints
? nir_iand(&b
, srcs
[0], srcs
[1])
1776 : nir_fand(&b
, srcs
[0], srcs
[1]);
1778 case ir_binop_logic_or
:
1779 result
= supports_ints
? nir_ior(&b
, srcs
[0], srcs
[1])
1780 : nir_for(&b
, srcs
[0], srcs
[1]);
1782 case ir_binop_logic_xor
:
1783 result
= supports_ints
? nir_ixor(&b
, srcs
[0], srcs
[1])
1784 : nir_fxor(&b
, srcs
[0], srcs
[1]);
1786 case ir_binop_lshift
: result
= nir_ishl(&b
, srcs
[0], srcs
[1]); break;
1787 case ir_binop_rshift
:
1788 result
= (type_is_signed(out_type
)) ? nir_ishr(&b
, srcs
[0], srcs
[1])
1789 : nir_ushr(&b
, srcs
[0], srcs
[1]);
1791 case ir_binop_imul_high
:
1792 result
= (out_type
== GLSL_TYPE_INT
) ? nir_imul_high(&b
, srcs
[0], srcs
[1])
1793 : nir_umul_high(&b
, srcs
[0], srcs
[1]);
1795 case ir_binop_carry
: result
= nir_uadd_carry(&b
, srcs
[0], srcs
[1]); break;
1796 case ir_binop_borrow
: result
= nir_usub_borrow(&b
, srcs
[0], srcs
[1]); break;
1798 if (supports_ints
) {
1799 if (type_is_float(types
[0]))
1800 result
= nir_flt(&b
, srcs
[0], srcs
[1]);
1801 else if (type_is_signed(types
[0]))
1802 result
= nir_ilt(&b
, srcs
[0], srcs
[1]);
1804 result
= nir_ult(&b
, srcs
[0], srcs
[1]);
1806 result
= nir_slt(&b
, srcs
[0], srcs
[1]);
1809 case ir_binop_gequal
:
1810 if (supports_ints
) {
1811 if (type_is_float(types
[0]))
1812 result
= nir_fge(&b
, srcs
[0], srcs
[1]);
1813 else if (type_is_signed(types
[0]))
1814 result
= nir_ige(&b
, srcs
[0], srcs
[1]);
1816 result
= nir_uge(&b
, srcs
[0], srcs
[1]);
1818 result
= nir_sge(&b
, srcs
[0], srcs
[1]);
1821 case ir_binop_equal
:
1822 if (supports_ints
) {
1823 if (type_is_float(types
[0]))
1824 result
= nir_feq(&b
, srcs
[0], srcs
[1]);
1826 result
= nir_ieq(&b
, srcs
[0], srcs
[1]);
1828 result
= nir_seq(&b
, srcs
[0], srcs
[1]);
1831 case ir_binop_nequal
:
1832 if (supports_ints
) {
1833 if (type_is_float(types
[0]))
1834 result
= nir_fne(&b
, srcs
[0], srcs
[1]);
1836 result
= nir_ine(&b
, srcs
[0], srcs
[1]);
1838 result
= nir_sne(&b
, srcs
[0], srcs
[1]);
1841 case ir_binop_all_equal
:
1842 if (supports_ints
) {
1843 if (type_is_float(types
[0])) {
1844 switch (ir
->operands
[0]->type
->vector_elements
) {
1845 case 1: result
= nir_feq(&b
, srcs
[0], srcs
[1]); break;
1846 case 2: result
= nir_ball_fequal2(&b
, srcs
[0], srcs
[1]); break;
1847 case 3: result
= nir_ball_fequal3(&b
, srcs
[0], srcs
[1]); break;
1848 case 4: result
= nir_ball_fequal4(&b
, srcs
[0], srcs
[1]); break;
1850 unreachable("not reached");
1853 switch (ir
->operands
[0]->type
->vector_elements
) {
1854 case 1: result
= nir_ieq(&b
, srcs
[0], srcs
[1]); break;
1855 case 2: result
= nir_ball_iequal2(&b
, srcs
[0], srcs
[1]); break;
1856 case 3: result
= nir_ball_iequal3(&b
, srcs
[0], srcs
[1]); break;
1857 case 4: result
= nir_ball_iequal4(&b
, srcs
[0], srcs
[1]); break;
1859 unreachable("not reached");
1863 switch (ir
->operands
[0]->type
->vector_elements
) {
1864 case 1: result
= nir_seq(&b
, srcs
[0], srcs
[1]); break;
1865 case 2: result
= nir_fall_equal2(&b
, srcs
[0], srcs
[1]); break;
1866 case 3: result
= nir_fall_equal3(&b
, srcs
[0], srcs
[1]); break;
1867 case 4: result
= nir_fall_equal4(&b
, srcs
[0], srcs
[1]); break;
1869 unreachable("not reached");
1873 case ir_binop_any_nequal
:
1874 if (supports_ints
) {
1875 if (type_is_float(types
[0])) {
1876 switch (ir
->operands
[0]->type
->vector_elements
) {
1877 case 1: result
= nir_fne(&b
, srcs
[0], srcs
[1]); break;
1878 case 2: result
= nir_bany_fnequal2(&b
, srcs
[0], srcs
[1]); break;
1879 case 3: result
= nir_bany_fnequal3(&b
, srcs
[0], srcs
[1]); break;
1880 case 4: result
= nir_bany_fnequal4(&b
, srcs
[0], srcs
[1]); break;
1882 unreachable("not reached");
1885 switch (ir
->operands
[0]->type
->vector_elements
) {
1886 case 1: result
= nir_ine(&b
, srcs
[0], srcs
[1]); break;
1887 case 2: result
= nir_bany_inequal2(&b
, srcs
[0], srcs
[1]); break;
1888 case 3: result
= nir_bany_inequal3(&b
, srcs
[0], srcs
[1]); break;
1889 case 4: result
= nir_bany_inequal4(&b
, srcs
[0], srcs
[1]); break;
1891 unreachable("not reached");
1895 switch (ir
->operands
[0]->type
->vector_elements
) {
1896 case 1: result
= nir_sne(&b
, srcs
[0], srcs
[1]); break;
1897 case 2: result
= nir_fany_nequal2(&b
, srcs
[0], srcs
[1]); break;
1898 case 3: result
= nir_fany_nequal3(&b
, srcs
[0], srcs
[1]); break;
1899 case 4: result
= nir_fany_nequal4(&b
, srcs
[0], srcs
[1]); break;
1901 unreachable("not reached");
1906 switch (ir
->operands
[0]->type
->vector_elements
) {
1907 case 2: result
= nir_fdot2(&b
, srcs
[0], srcs
[1]); break;
1908 case 3: result
= nir_fdot3(&b
, srcs
[0], srcs
[1]); break;
1909 case 4: result
= nir_fdot4(&b
, srcs
[0], srcs
[1]); break;
1911 unreachable("not reached");
1914 case ir_binop_vector_extract
: {
1915 result
= nir_channel(&b
, srcs
[0], 0);
1916 for (unsigned i
= 1; i
< ir
->operands
[0]->type
->vector_elements
; i
++) {
1917 nir_ssa_def
*swizzled
= nir_channel(&b
, srcs
[0], i
);
1918 result
= nir_bcsel(&b
, nir_ieq(&b
, srcs
[1], nir_imm_int(&b
, i
)),
1924 case ir_binop_ldexp
: result
= nir_ldexp(&b
, srcs
[0], srcs
[1]); break;
1926 result
= nir_ffma(&b
, srcs
[0], srcs
[1], srcs
[2]);
1929 result
= nir_flrp(&b
, srcs
[0], srcs
[1], srcs
[2]);
1933 result
= nir_bcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
1935 result
= nir_fcsel(&b
, srcs
[0], srcs
[1], srcs
[2]);
1937 case ir_triop_bitfield_extract
:
1938 result
= (out_type
== GLSL_TYPE_INT
) ?
1939 nir_ibitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]) :
1940 nir_ubitfield_extract(&b
, srcs
[0], srcs
[1], srcs
[2]);
1942 case ir_quadop_bitfield_insert
:
1943 result
= nir_bitfield_insert(&b
, srcs
[0], srcs
[1], srcs
[2], srcs
[3]);
1945 case ir_quadop_vector
:
1946 result
= nir_vec(&b
, srcs
, ir
->type
->vector_elements
);
1950 unreachable("not reached");
1955 nir_visitor::visit(ir_swizzle
*ir
)
1957 unsigned swizzle
[4] = { ir
->mask
.x
, ir
->mask
.y
, ir
->mask
.z
, ir
->mask
.w
};
1958 result
= nir_swizzle(&b
, evaluate_rvalue(ir
->val
), swizzle
,
1959 ir
->type
->vector_elements
, !supports_ints
);
1963 nir_visitor::visit(ir_texture
*ir
)
1970 num_srcs
= 1; /* coordinate */
1975 op
= (ir
->op
== ir_txb
) ? nir_texop_txb
: nir_texop_txl
;
1976 num_srcs
= 2; /* coordinate, bias/lod */
1980 op
= nir_texop_txd
; /* coordinate, dPdx, dPdy */
1986 if (ir
->lod_info
.lod
!= NULL
)
1987 num_srcs
= 2; /* coordinate, lod */
1989 num_srcs
= 1; /* coordinate */
1993 op
= nir_texop_txf_ms
;
1994 num_srcs
= 2; /* coordinate, sample_index */
1999 if (ir
->lod_info
.lod
!= NULL
)
2000 num_srcs
= 1; /* lod */
2007 num_srcs
= 1; /* coordinate */
2012 num_srcs
= 1; /* coordinate */
2015 case ir_query_levels
:
2016 op
= nir_texop_query_levels
;
2020 case ir_texture_samples
:
2021 op
= nir_texop_texture_samples
;
2025 case ir_samples_identical
:
2026 op
= nir_texop_samples_identical
;
2027 num_srcs
= 1; /* coordinate */
2031 unreachable("not reached");
2034 if (ir
->projector
!= NULL
)
2036 if (ir
->shadow_comparator
!= NULL
)
2038 if (ir
->offset
!= NULL
)
2041 /* Add one for the texture deref */
2044 nir_tex_instr
*instr
= nir_tex_instr_create(this->shader
, num_srcs
);
2047 instr
->sampler_dim
=
2048 (glsl_sampler_dim
) ir
->sampler
->type
->sampler_dimensionality
;
2049 instr
->is_array
= ir
->sampler
->type
->sampler_array
;
2050 instr
->is_shadow
= ir
->sampler
->type
->sampler_shadow
;
2051 if (instr
->is_shadow
)
2052 instr
->is_new_style_shadow
= (ir
->type
->vector_elements
== 1);
2053 switch (ir
->type
->base_type
) {
2054 case GLSL_TYPE_FLOAT
:
2055 instr
->dest_type
= nir_type_float
;
2058 instr
->dest_type
= nir_type_int
;
2060 case GLSL_TYPE_BOOL
:
2061 case GLSL_TYPE_UINT
:
2062 instr
->dest_type
= nir_type_uint
;
2065 unreachable("not reached");
2068 nir_deref_instr
*sampler_deref
= evaluate_deref(ir
->sampler
);
2069 instr
->src
[0].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2070 instr
->src
[0].src_type
= nir_tex_src_texture_deref
;
2071 instr
->src
[1].src
= nir_src_for_ssa(&sampler_deref
->dest
.ssa
);
2072 instr
->src
[1].src_type
= nir_tex_src_sampler_deref
;
2074 unsigned src_number
= 2;
2076 if (ir
->coordinate
!= NULL
) {
2077 instr
->coord_components
= ir
->coordinate
->type
->vector_elements
;
2078 instr
->src
[src_number
].src
=
2079 nir_src_for_ssa(evaluate_rvalue(ir
->coordinate
));
2080 instr
->src
[src_number
].src_type
= nir_tex_src_coord
;
2084 if (ir
->projector
!= NULL
) {
2085 instr
->src
[src_number
].src
=
2086 nir_src_for_ssa(evaluate_rvalue(ir
->projector
));
2087 instr
->src
[src_number
].src_type
= nir_tex_src_projector
;
2091 if (ir
->shadow_comparator
!= NULL
) {
2092 instr
->src
[src_number
].src
=
2093 nir_src_for_ssa(evaluate_rvalue(ir
->shadow_comparator
));
2094 instr
->src
[src_number
].src_type
= nir_tex_src_comparator
;
2098 if (ir
->offset
!= NULL
) {
2099 /* we don't support multiple offsets yet */
2100 assert(ir
->offset
->type
->is_vector() || ir
->offset
->type
->is_scalar());
2102 instr
->src
[src_number
].src
=
2103 nir_src_for_ssa(evaluate_rvalue(ir
->offset
));
2104 instr
->src
[src_number
].src_type
= nir_tex_src_offset
;
2110 instr
->src
[src_number
].src
=
2111 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.bias
));
2112 instr
->src
[src_number
].src_type
= nir_tex_src_bias
;
2119 if (ir
->lod_info
.lod
!= NULL
) {
2120 instr
->src
[src_number
].src
=
2121 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.lod
));
2122 instr
->src
[src_number
].src_type
= nir_tex_src_lod
;
2128 instr
->src
[src_number
].src
=
2129 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdx
));
2130 instr
->src
[src_number
].src_type
= nir_tex_src_ddx
;
2132 instr
->src
[src_number
].src
=
2133 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.grad
.dPdy
));
2134 instr
->src
[src_number
].src_type
= nir_tex_src_ddy
;
2139 instr
->src
[src_number
].src
=
2140 nir_src_for_ssa(evaluate_rvalue(ir
->lod_info
.sample_index
));
2141 instr
->src
[src_number
].src_type
= nir_tex_src_ms_index
;
2146 instr
->component
= ir
->lod_info
.component
->as_constant()->value
.u
[0];
2153 assert(src_number
== num_srcs
);
2155 unsigned bit_size
= glsl_get_bit_size(ir
->type
);
2156 add_instr(&instr
->instr
, nir_tex_instr_dest_size(instr
), bit_size
);
2160 nir_visitor::visit(ir_constant
*ir
)
2163 * We don't know if this variable is an array or struct that gets
2164 * dereferenced, so do the safe thing an make it a variable with a
2165 * constant initializer and return a dereference.
2169 nir_local_variable_create(this->impl
, ir
->type
, "const_temp");
2170 var
->data
.read_only
= true;
2171 var
->constant_initializer
= constant_copy(ir
, var
);
2173 this->deref
= nir_build_deref_var(&b
, var
);
2177 nir_visitor::visit(ir_dereference_variable
*ir
)
2179 struct hash_entry
*entry
=
2180 _mesa_hash_table_search(this->var_table
, ir
->var
);
2182 nir_variable
*var
= (nir_variable
*) entry
->data
;
2184 this->deref
= nir_build_deref_var(&b
, var
);
2188 nir_visitor::visit(ir_dereference_record
*ir
)
2190 ir
->record
->accept(this);
2192 int field_index
= ir
->field_idx
;
2193 assert(field_index
>= 0);
2195 this->deref
= nir_build_deref_struct(&b
, this->deref
, field_index
);
2199 nir_visitor::visit(ir_dereference_array
*ir
)
2201 nir_ssa_def
*index
= evaluate_rvalue(ir
->array_index
);
2203 ir
->array
->accept(this);
2205 this->deref
= nir_build_deref_array(&b
, this->deref
, index
);
2209 nir_visitor::visit(ir_barrier
*)
2211 nir_intrinsic_instr
*instr
=
2212 nir_intrinsic_instr_create(this->shader
, nir_intrinsic_barrier
);
2213 nir_builder_instr_insert(&b
, &instr
->instr
);